| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Infrared Luminescent Properties of a Pr-Doped KBr Submicron Rod |
| WEI Feng-Wei, ZHANG Xiao-Song**, LI Lan, XU Jian-Ping, ZHOU Yong-Liang, LIU Pei
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Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), Tianjin University of Technology, Tianjin 300384
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| Cite this article: |
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WEI Feng-Wei, ZHANG Xiao-Song, LI Lan et al 2011 Chin. Phys. Lett. 28 077803 |
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Abstract KBr:Pr with a submicron rod structure is successfully synthesized by a solid-state reaction using absolute alcohol as the abrasive. X-ray diffraction, scanning electron microscopy, photoluminescence spectra and fluorescence decay curves are used to characterize the resulting materials. The influences of Pr3+ dopant concentration on the luminescence and lifetime are discussed. Furthermore, luminescent measurements show that KBr:Pr has a high emission intensity compared with other Pr-doped matrixes, which is related to the low phonon energy of KBr. The results suggest that the phonon energy of the host is important in determining the luminescent efficiency.
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| Keywords:
78.55.Fv
78.20.Ci
63.20.D-
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Received: 21 March 2011
Published: 29 June 2011
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| PACS: |
78.55.Fv
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(Solid alkali halides)
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78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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63.20.D-
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(Phonon states and bands, normal modes, and phonon dispersion)
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